I have errors too checking my dmesg

[ 2.660278] Scanning device for bad blocks
[ 2.679565] onenand_bbt_wait: ecc error = 0x2222, controller error 0x2400
[ 2.679595] Bad eraseblock 337 at 0x02a20000
[ 2.710601] onenand_bbt_wait: ecc error = 0x2222, controller error 0x2400
[ 2.710632] Bad eraseblock 882 at 0x06e40000
[ 2.743316] onenand_bbt_wait: ecc error = 0x2222, controller error 0x2400
[ 2.743377] Bad eraseblock 1457 at 0x0b620000
[ 2.745361] onenand_bbt_wait: ecc error = 0x2222, controller error 0x2400
[ 2.745391] Bad eraseblock 1492 at 0x0ba80000

what are those related and how to fix?